DWHlabs provides Data Warehouse education services.This web portal is very useful to the Database professionals,
Data Warehouse professionals, UNIX professionals etc.,
The assosciation between two entities in E-R model.The relation can be one-to-one or one-to-many or many-toone or many-to-many.
REQUIREMENTS ENGINEERING
The first stage in software development.in this stage, the development team memebers obtain the requirements from the users, prepare an SRS document andget the document validated by the users.